強間 Qiangjian
“Strong Interval” · GV18
Governing Vessel · 18 of 28
Where. On the midline of the back of the head, halfway between the skull bump and Baihui at the crown.
For. Headache, dizziness, poor sleep.
Press. Gentle, about a minute.
在後頂後一寸五分按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Qiangjian Sits on the Back of the Head
Qiangjian takes its place on the posterior midline of the head — the vertical seam running from the nape up over the crown. The dataset locates it four cun directly above the midpoint of the posterior hairline, and describes it in the same breath as sitting midway between its two du-channel neighbours: Naohu (GV17) below and Baihui (GV20) above. A cun is the traditional proportional unit of point-location, taken from the body being examined rather than from any ruler — about one thumb-width at the thumb for most adults — so four cun means four such widths measured straight up the centre line from where the hairline meets it. Natural hairlines wander from person to person, which is why the neighbour anchors matter as much as the count, and the walkthrough below leans on both.
The landscape here is the backward slope of the skull. Below the point rises the external occipital protuberance — the definite bony knob most people can find at the lower back of the head — and the dataset places Naohu (GV17) in the depression on its upper border. From that hollow the midline climbs across a broad, gently domed stretch of scalp toward the crown, where Baihui (GV20) sits at the intersection of the midline of the vertex with a line joining the tips of both ears. Qiangjian occupies the middle reaches of that climb. Beneath the fingertips lie only the layers of the scalp itself: skin, a firm tendon-like sheet, and then bone surprisingly close beneath. There is no muscle bulk to push aside and no cavity to respect — just a padded table of bone wearing a thin mattress of tissue.
As everywhere on the governing line, there is no left-and-right pair to hunt: one Qiangjian, centred, shared equally by both halves of the head. Classical maps station the du channel’s points singly along this seam because, as the site’s meridian notes describe it, the Du or Governing Vessel runs up the midline of the back and head, uniting all yang meridians. Knowing the rhythm of neighbours helps the search: Fengfu (GV16) keeps watch in the hollow just below the knob, between the two bellies of the trapezius; Naohu caps it; Qiangjian stands midway along the ascent; Baihui crowns the summit. Losing your place simply means returning to one of the two great anchors — the knob behind or the crossing at the crown — and starting again slowly.
A Self-Palpation Walkthrough
Sit upright in a comfortable chair, shoulders released, and bow the head slightly so the landmarks at the back of the skull round toward your exploring fingers. First find the bony knob at the lower back of the head — the external occipital protuberance — and the soft hollow immediately above it; that hollow neighbourhood belongs to Naohu (GV17). Next bring a hand across the top of the head to find the crown: imagine a line joining the tips of both ears and follow it over the top until it meets the midline — that crossing is Baihui (GV20). You now hold both ends of a short scalp journey. Walk your fingertips straight up the midline seam from the hollow above the knob, parting the hair as you go, until you have covered roughly the middle of the stretch between the two anchors; the dataset sets Qiangjian four cun — four thumb-widths — directly above the posterior hairline, on that very line.
A few quiet checks settle the placement. Part the hair and press feather-light with a finger pad, comparing the spot against points a thumb-width above and below it: many people register a faint dullness or mild tenderness at the true site and little sensation nearby. Notice the ground itself — the midline seam feels like a shallow groove running over the dome of the skull, and the pad settles into it rather than onto the rounded parietal slopes either side. Let a slow breath pass and observe that the scalp barely moves; that stillness quietly confirms you are far from the heave of the chest. And because this is a single central point, symmetry offers no left-right choice to second-guess: if you seem to be off to one side, you are simply off the midline, and returning is a matter of sliding back to the seam.
Three slips account for most mislocations. The first is trusting an unruly or thinning hairline alone and stopping low, in Naohu’s territory beside the occipital knob; whenever the hairline seems unreliable, the ear-tip line to the crown is the sturdier reference. The second is drifting sideways off the seam among the soft parietal slopes — keep returning to the shallow central groove. The third is searching only with fingertip tips against dense hair; instead part the hair deliberately and touch through the parting with the pad, or explore right after washing when the hair lies cooperative. None of these errors carries any risk — the scalp forgives wandering — but patience finds the true address faster than force ever could.
Reading the Name: Strong Interval
The name is short and physical. Qiang 強 means strong, powerful, unyielding — and in the medical vocabulary of the old texts the same character does duty in compounds for rigidity and stiffness, the quality of a sinew or a neck gone taut. Jian 間 means interval: the space between, a roomy pause inside a structure. Read plainly, Qiangjian is the strong interval — and one natural traditional hearing of the name hears the stiffness in it, pointing at the very complaints the point’s own record keeps: headache and a stiff neck. Geography supports the reading, for the point stands exactly where the mobile neck hands over to the fixed vault of the skull — a hinge between the head that turns freely and the cap that does not turn at all.
The name also sits naturally inside the du channel’s larger story. Classical teaching gives the governing vessel lordship among the meridians: it climbs the spine’s midline carrying all the yang channels with it, and its head-stretch stations sentinels from the occiput to the crown. On that ascent Qiangjian holds the middle watch. Worth noticing, too, is what the record withholds: the dataset assigns this point no special class — no gathering office, no crossing status, no mu role. Its character rests on position and name alone. Some points carry titles; this one carries geography and a word for strength.
Pinyin writes the name Qiángjiān. Qiang rides the second tone — a rising inflection, the voice climbing from middle pitch upward — while jian holds the first tone, high and level, steady as the plateau it names. The dictionary gives the character 間 a second life as jiàn in other settings, where it shades toward separating and gap-making, but the point name follows the level, first-tone reading of a simple interval. The two hanzi, 強間, are plain enough to memorise at a glance, and they belong to the channels’ wider naming family of gates, wells, and courtyards: the tradition labels its map with the vocabulary of lived spaces, and this particular space takes its name from what gathers there — strength, and the tightness that asks for release.
Traditional Indications, Explained
Six indication lines stand in the licensed record: headache, stiff neck, dizziness, vexation, insomnia, and mania. Take them in the spirit of the old literature rather than as modern diagnoses. Headache and stiff neck lead the list, and channel logic explains their company: the du vessel runs up the midline of the back and head, so discomfort tracking that seam — pain gathering at the back of the head, a neck gone rigid and reluctant to turn — was classically read as the governing channel’s own territory, addressed at points stationed along it. Qiangjian, planted midway up the head on that same line, belonged squarely to such discussions.
Dizziness, vexation, and insomnia form a quieter trio. Traditional medicine understood dizziness — a world tilting, a lightness behind the eyes — in many frames, one of the oldest being clear yang failing to reach the head or unsettled yang rising to it; a vessel that unites all the yang meridians therefore kept points in readiness for that conversation. Vexation is a distinct traditional concept: a restless, irritable oppression felt in the chest and mind, the discomfort of qi refusing to settle. Insomnia rode beside it naturally, since a mind that cannot still itself cannot sleep. These are descriptions of experienced distress in the classical idiom — ways the old records organised what people brought to them.
Mania closes the list and asks for the same candour the rest of the record deserves. In premodern filing, mania named severe disturbance of the mind and conduct — grave presentations the old texts grouped together and treated with corresponding gravity. The listing documents how premodern medicine classified serious illness; it is not a suggestion that pressing a point addresses it. Disturbances of mood or thought today belong with physicians and mental-health professionals, promptly and properly. And as on every page of this layer: where modern research touches self-applied pressure at all, reviews suggest effects are modest and context-dependent, and evidence tied to any single point remains thin. Hold the tradition as heritage; hold the boundary as law.
Self-Care Acupressure at Home
With the point found, arrange comfort before contact. Sit tall but unforced; reach across with the opposite hand, or cradle the back of your head in one palm and let the index and middle pads share the work. Settle the pads — never nails or knuckles — onto the midline seam through parted hair. Begin with contact alone for a few unhurried breaths; then add small, slow circles, letting the scalp glide over the bone beneath rather than scrubbing the skin. Pressure should register as pleasant dullness or spreading warmth, never as pain driven inward. A common home rhythm is one to three minutes, once or twice daily, matched where possible to long exhales so each circle rides the breath out. One point, centred: there is no second side to swap to, and the session ends when it feels complete, not exhausted.
Quality outranks duration, as everywhere in this practice. Warm the hands first; choose a quiet corner over a screen; treat the minutes as a pause that belongs to you rather than a task to finish. Many readers tether the habit to something already fixed — after the morning wash, before sleep, during an afternoon break — because regularity is what self-care traditions actually request. Across weeks, notice honestly: perhaps the scalp feels less braced, perhaps the neck releases a little as you work, perhaps nothing shifts beyond the pleasure of a daily pause. Every one of those outcomes fits the honest scope of acupressure, and none of them needs exaggeration.
Escalation is the outcome to refuse. Pressing harder, kneading like dough, dragging combs or rollers across the spot, or stretching sessions to chase a stronger feeling adds risk to a practice whose value lives in gentleness. If sharp, electric, or radiating sensation appears, stop at once and do not resume that day. If the scalp feels tender after a long week, lighten further or let the practice rest altogether; the point does not keep score. Gentle, brief, repeated: three adjectives carry the entire method, and they cost less than the strength the point is named for.
Cautions and Safe Practice
The dataset records no caution specific to Qiangjian — the licensed files list none for this entry, and this page echoes that empty record faithfully, as it must. An absence of recorded warnings is not, however, an invitation to force. The back of the head is a closed case: beneath the scalp lies bone, and beneath the bone the brain, cushioned but not armored against blunt enthusiasm. Everything in this guide therefore stays strictly superficial — finger pads resting through hair, intention no deeper than the skin. No tools, no devices, no knuckle-work, no percussion of any kind; the skull rewards curiosity about its surface, never blows upon it.
Practical exclusions keep the routine uneventful. Set the point aside during feverish or acute illness, over broken, irritated, or erupting scalp skin, and after any head injury, scalp wound, or cranial surgery until a clinician clears ordinary activity — a rule that matters doubly after any knock to the head, however minor it seemed at the time. Anyone living with a scalp or skin condition should ask a qualified practitioner before adding friction of any kind. Pregnant readers, as on every page of this site, are invited to consult a qualified practitioner before beginning new point practices. And the standing stop signal holds: sharp, electric, or radiating sensation means immediate cessation for the day.
Above the particulars towers the general rule: this page educates; it does not diagnose or treat. Seek prompt medical care — not a pressure routine — for a sudden severe headache or the worst headache of your life, any headache following a blow to the head, dizziness with slurred speech, blurred vision, limb weakness, or unsteady walking, repeated vomiting, fainting, or any symptom that frightens you. Persistent headaches, ongoing dizziness, or stubborn insomnia belong with licensed clinicians, Western or East Asian as the complaint suggests. The strong interval will keep; it has stood on the map for centuries. Your health is the thing that should not wait.
Qiangjian, the Strong Interval, stands on the midline at the back of the head, midway between Naohu (GV17) by the occipital bone and Baihui (GV20) at the crown. The du channel passes here on its ascent up the midline of the back and head; classical practice reached for this point amid headache, stiff neck, and dizziness. This guide walks through finding it by touch and pressing it gently.
Self-care limits
Frequently asked
- How do I find Qiangjian without knowing anything about cun?
- Lean on the two anchors instead of measurements. Find the bony knob at the lower back of the head and the soft hollow just above it — Naohu (GV17) territory — then find the crown, where a line joining the tips of both ears crosses the midline — Baihui (GV20). The dataset describes Qiangjian as sitting midway between those neighbours on the midline seam. Part the hair, walk straight up the centre from the hollow, and trust the groove you feel under the pad; cun measurements simply encode the same journey in proportional language.
- Is pressing a point on the back of the head actually safe?
- Gentle fingertip contact on the scalp engages skin and a tendon-like sheet lying over solid bone, far from anything delicate; for healthy adults this is generally reasonable self-care. Home practice never approaches the deep professional techniques discussed in licensed literature — a category defined by training this page does not teach. Respect the stop signals: sharp pain, electric or radiating sensation, or worsening discomfort mean finish immediately, and any recent head injury suspends the practice until a clinician clears ordinary activity.
- What did classical practice use Qiangjian for?
- The recorded indications are headache, stiff neck, dizziness, vexation, insomnia, and mania. Classical reasoning tied the head-and-neck complaints to the du vessel’s course up the midline of the back and head, and filed the remaining lines among the categories older medicine used for restless minds and grave mental disturbance. Those listings document tradition and classification — offered for understanding, not as treatment claims.
- Why does the governing vessel climb onto the head at all?
- Classical teaching makes the du vessel the unifier of all yang meridians, and its recorded course runs up the midline of the back and then onward over the head. The head-stretch is studded accordingly: points stand at the occipital hollows, along the ascent, and at the crown itself. Qiangjian holds a middle post on that climb — which is why its name, its indications, and its neighbours all read as chapters of one continuous journey up the spine and over the skull.
- Can pressing Qiangjian replace seeing a doctor about my headaches?
- No. Self-acupressure is a comfort practice, not a diagnostic tool. A sudden severe headache, the worst headache of your life, headache after a blow to the head, or dizziness with changes in speech, vision, or walking needs prompt medical assessment — today, not after a course of pressing. For ordinary tense days, think of gentle scalp work and clinical care as different floors of one building: daily self-care downstairs, the consulting room upstairs when symptoms persist or escalate. Neither substitutes for the other.
Sources
- 01WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), World Health Organization — nomenclature conventions.
- 02A Manual of Acupuncture, Peter Deadman, Mazin Al-Khafaji and Kevin Baker — point-name tradition, du-vessel context, and classical indication history.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for GV18 Qiangjian — location, actions, and caution record.
Last reviewed
牌記This leaf, for machines
Old books ended with a colophon saying who printed them. Every leaf here carries the same facts as structured data for agents and search, with no layout in the way.
- GET /en/points/gv18/leaf.json
- GET /zh-hant/points/gv18/leaf.json
- GET /zh-cn/points/gv18/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "GV18",
"name": {
"en": "Qiangjian",
"gloss": "Strong Interval",
"zh-Hant": "強間",
"zh-Hans": "强间"
},
"channel": {
"id": "GV",
"order": 18,
"of": 28
},
"location": {
"text": "On the midline of the back of the head, halfway between the skull bump and Baihui at the crown."
},
"for": [
"headache",
"dizziness",
"poor sleep"
],
"press": {
"text": "Gentle, about a minute.",
"seconds": 60
},
"cautions": [],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/gv18",
"lastReviewed": "2026-08-24"
}